Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A shift in the average high-temperature occurs in September, reducing from a warm 82.2°F (27.9°C) in August to an agreeable 70.9°F (21.6°C). Addy anticipates a pronounced temperature drop from daily highs during the nights of September, with an average low of 44.4°F (6.9°C).Humidity
In Addy, the average relative humidity in September is 57%.Rainfall
In September, in Addy, the rain falls for 5.2 days. Throughout September, 0.55" (14mm) of precipitation is accumulated. In Addy, during the entire year, the rain falls for 125.6 days and collects up to 15.59" (396mm) of precipitation.Snowfall
Months with snowfall in Addy, Washington, are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.67" (17mm) of snow. Throughout the year, there are 69.4 snowfall days, and 42.2" (1072mm) of snow is accumulated.Daylight
In September, the average length of the day in Addy is 12h and 34min.On the first day of September, sunrise is at 6:10 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:31 pm PDT.
Sunshine
The average sunshine in September is 10.3h.UV index
The average daily maximum UV index in September in Addy is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Addy in September?
What is the average humidity in September in Addy?
How much does it rain in Addy in September?
When does it start snowing in Addy?
How many hours of daylight does Addy have in September?
When is the sunrise / sunset in September in Addy?
How many hours of sunshine does Addy have in September?
What is the UV index intensity in September in Addy?
Average temperature in September
Addy, WA
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is August (82.2°F).
The month with the lowest average high temperature is December (29.5°F).
- Average low temperature in September: 44.4°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in September
Addy, WA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in September
Addy, WA
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are January, February and December (3.5mph).
Average humidity in September
Addy, WA
- Average humidity in September: 57%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Addy, WA
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is January (2.2").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in September
Addy, WA
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is March (17.6 days).
The month with the least rainy days is August (3.6 days).
Average snowfall in September
Addy, WA
- Average snowfall in September: 0.67"
The month with the highest snowfall is January (12.05").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Addy, WA
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Addy, WA
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Addy, WA
- Average sunshine days in September: 23.2 days
The month with the most sunshine days is August (26.5 days).
The month with the least sunshine days is March (8.8 days).
Average UV index in September
Addy, WA
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in September
Addy, WA
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Addy, WA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Addy, Washington, USA
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